15. f3e5 For the two pawns, Carlsen has gotten an overwhelming position. Firouzja can barely develop his queenside; the extra pawns have no value at all. 15... b7b5  16. c2c1 White is not hiding his intentions of a kingside visit. 16... g8h8 A slim chance... 17. c1f4 True to himself, Carlsen follows his plan without any distractions.